The Virtual Teacher's College at Gush Etzion allows teachers access to the catalogue of the pedagogic library of Michlelet Herzog.  As documents are requested, the information is scanned and made available on the College's web site.  The documents that I know  are available have been listed here.  If you know of other available documents, please contact me with the link at the College, e.g. http://www.vbm-torah.org/vtc/0056236.html.